There's no mental conversion to dollars necessary. If someone tells me they own half a Bitcoin, I can think, "Wow, that's pretty good. Financially, they're set up for a good life." That is Bitcoin functioning as a unit of account. We don't need to run the conversion to USD. We're probably better off converting the grocery store prices to sats so that we can understand what we're actually giving up, because the ~$111k price of today really doesn't illustrate the value of a whole Bitcoin.